Initial refactor to package work (unfinished)

Hey, don't merge this yet (assuming you're happy with it :)), I still have more planned but out of time for today.  But this is the basic work which will make your current presentation kind of work as is, with all the slide stuff moved out to a separate package.

I got rid of 'title' and 'end' and renumbered the slides.  Besides making routing a lot easier, it also makes more sense, because previously you'd have a url of `/slide01` and a slideCpt (caption?) of `2/15` which was quite weird.  So now the numbers match up.

Other than that and besides moving all the files to a package, very few changes except for some changes of when various routines are run to make things a little more robust.  And some famous-views syntax improvements specific to the new version (which is thanks to you :)).

Hope it all looks ok... was VERY weird for me working in CS (my first time :)), had to resort to js2coffee.org a lot of times and felt very lost haha.  Anyways, getting there.

The main idea (as per `packages/pierreeric\:fview-slidedeck/README.md`) is for someone to just add the package and create templates called `slide1` etc.  And nothing else!